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CS216 Advanced Database Systems

CS216 Advanced Database Systems

CS216 Advanced Database Systems. Notes 12: Concurrency Control (II). Shivnath Babu. How to enforce serializable schedules?. Option 1: run system, recording P(S); at end of day, check for P(S) cycles and declare if execution was good. How to enforce serializable schedules?.

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1.01k views • 89 slides
CS216 Advanced Database Systems

CS216 Advanced Database Systems

CS216 Advanced Database Systems. Notes 12: Concurrency Control (II). Shivnath Babu. How to enforce serializable schedules?. Option 1: run system, recording P(S); at end of day, check for P(S) cycles and declare if execution was good. How to enforce serializable schedules?.

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1.04k views • 89 slides
CS216 Advanced Database Systems

CS216 Advanced Database Systems

CS216 Advanced Database Systems. Notes 12: Concurrency Control (II). Shivnath Babu. How to enforce serializable schedules?. Option 1: run system, recording P(S); at end of day, check for P(S) cycles and declare if execution was good. How to enforce serializable schedules?.

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931 views • 89 slides
ICS 214B: Transaction Processing and Distributed Data Management

ICS 214B: Transaction Processing and Distributed Data Management

ICS 214B: Transaction Processing and Distributed Data Management. Lecture 4: More on Locks Professor Chen Li. Lock types beyond S/X locks. Examples: (1) increment lock (2) update lock. Example (1): increment lock. Atomic increment action: IN i (A) {Read(A); A ? A+k; Write(A)}

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480 views • 37 slides
Chapter 18.5: An Architecture for a Locking Scheduler

Chapter 18.5: An Architecture for a Locking Scheduler

Chapter 18.5: An Architecture for a Locking Scheduler. Loc Nguyen Class ID: 213 Feb 27, 2008. Overview. Assume knowledge of: Lock Two phase lock Lock modes: shared, exclusive, update Consider a simple scheduler that: Insert locks for transaction Release locks when told. Lock table.

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314 views • 10 slides

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